class BitTest{
	public static void main(String[] args) {
		int num1 = 10;
		int num2 = 20;
		int num3 = -16;
		System.out.println("num1="+(num1<<1));
		System.out.println("num2="+(num2>>1));
		System.out.println("num3="+(num3>>1));
		
	}
}